The research builds on the concept of psychological distance, which is important for finding fresh approaches to a thorny problem.

Race relations in the USA continue to be a thorny problem

美国的各族关系依然是个棘手的问题

Enlightenment of Applying the Scientific Development Outlook to Solving the Thorny Problem of Conducting Cultural Education among Athletes

用科学发展观破解运动员文化教育难题的启示

In a specification of hundreds of pages, consistency is a thorny problem.

在一部有着数百页的规格说明里，一致性是一个棘手的问题。

Sometimes, it is an ideal way to combine literal translation and free translation to deal with a thorny problem in practice.

直译与意译相结合的方法不失为处理翻译的好方法。

A conference later in the summer will bring experts in the field together to discuss the future of food. It's a thorny subject.

食品专家们将在这个夏季举行一次讨论有关未来食品的会议。食品问题是个棘手的问题。

Do please clear out all those sticky old sweet papers from your drawer this time.

这次你无论如何要全部扔掉你屉子里那些粘糊糊的旧糖纸.

In this thesis, we discuss three different light conditions: Under darkness, the free running periods are varied among different species.

我们这里考虑了三种光照条件：在持续黑暗下，实验发现不同的物种有不同的自振荡周期。

Horizontal shaking table tests for structure with viscoelastic multi-dimensional earthquake isolation and mitigation devices free running multiple vibrator

黏弹性多维隔减震结构水平向振动台试验研究自由摆动多谐振动器

Free running systems then prevent the starter from reaching speeds that are too high due to the starting engine, which could damage it.

空转系统随后阻止起动机因起动发动机而达到过高的速度，否则会损坏发动机。

Enlarging locking bandwidth and decreasing the control error of element free running frequency can make the beam pointing direction more accurate.

阵元自由振荡频率的误差越小，阵元锁相带宽越大，波束指向误差越小；

It indicates from the experiment results that the stability of laser has been highly enhanced when running with high repetition frequency after using this novel Q-switched method, and it effectively solved thermal depolarization effect, improved output ratio of Q-switching to free running.

实验结果表明，采用这种方式后，在重复频率工作时较大的提高了激光输出稳定性，有效地解决了热退偏效应，提高了调Q动静比。

Free running multiple vibrator

自由摆动多谐振动器

Free running emerald laser pumped by 660 nm laser diode ( LD) was reported.

报道了温差水热法生长的祖母绿晶体在660nm激光二极管（LD）抽运下的激光实验结果。

Research of free running emerald laser pumped by 670. 7 nm laser

670.7nm激光抽运下的祖母绿晶体激光运转实验研究

The numerical results from Goodwin model and the analytical results from phase model show that the free running period is in contrast to the dispersion of coupling strength.

Goodwin模型的数值模拟以及对相振子模型的解析发现自振荡周期是与耦合强度的离散程度呈反比的。

With the increasing of reduction grade the viscosity and free running temperature of slags would have rising tendency.

随着钛氧化物还原度的提高，炉渣的粘度和熔化性温度总体呈上升趋势。

It has been found that the neutral point diodes only functions when an alternator works at speed of higher than 3.3 times of free running speed and the resistance of the load is less than the impedance of one stator winding.

确定了中性点二极管发挥作用的转速条件和负载条件，即发电机转速高于3.3倍空载转速、负载电阻小于一相定子绕组的阻抗。

Compared with conventional fixed frequency control. the chip using free running quasi-resonant technique provide the agile resolvent for different application condition, also decrease the high demand of external devices.

与现有固定频率的传统控制器相比，XD2508利用自由开关频率的准谐振技术，为不同的应用场合提供了更加灵活的设计方案，同时也降低了对外部器件的过高要求及依赖。

The sources of forced vibration in the machine tool are found by means of the free running experiment.

通过空运转试验查明了机床受迫振动的振源。

In7, wedding convoy in the moving process, must strictly abide by the traffic regulations, not many people by car, free running the red light.

在婚礼车队行进过程中，要严格遵守交通法规，不要仗着车多人多，随意闯红灯。